OBERWEIS ASSET MANAGEMENT INC/

PrivateCIK: 937886

Location

LISLE, IL

176

Positions

$4.84B

Total AUM (reported)

72.17M

Total Shares

Allocation by class

COM$4.84B100.0%

ETF$1.78M0.0%

PFD$260.3K0.0%

Portfolio Concentration

Top 3$687.01M14.2%

4–10$600.83M12.4%

11–25$803.27M16.6%

Rest$2.75B56.8%

Top 3 weight

14.2%

Top 10 weight

26.6%

Voting Authority Distribution

Total shares with voting rights: 72.17M

Sole

Full voting authority

71.47M

% of voting shares99.0%

Shared

Joint voting authority

0.00

% of voting shares0.0%

None

No voting authority

697.67K

% of voting shares1.0%

Investment Discretion (by position count)

Sole176

Shared0

Other0

Dominant voting typeSole · 99.0% of voting shares

Institutional Holdings176

Rows:

Credo Technology Group

SOLE

COM

Shares1.01M

TypeSH

Market value$275.60M

5.69%

Sole

990.60K

Shared

0.00

None

22.83K

Applied Optoelectronics Inc.

SOLE

COM

Shares1.79M

TypeSH

Market value$265.37M

5.48%

Sole

1.78M

Shared

0.00

None

11.94K

DigitalOcean Holdings, Inc.

SOLE

COM

Shares930K

TypeSH

Market value$146.04M

3.02%

Sole

898.28K

Shared

0.00

None

31.72K

Silicon Motion Techn ADR

SOLE

COM

Shares316.35K

TypeSH

Market value$105.45M

2.18%

Sole

316.35K

Shared

0.00

None

0.00

Ultra Clean Holdings

SOLE

COM

Shares647.28K

TypeSH

Market value$92.30M

1.91%

Sole

646.38K

Shared

0.00

None

900.00

SharkNinja, Inc.

SOLE

COM

Shares593.50K

TypeSH

Market value$90.37M

1.87%

Sole

578.70K

Shared

0.00

None

14.80K

SiTime Corporation

SOLE

COM

Shares119.50K

TypeSH

Market value$89.10M

1.84%

Sole

119.50K

Shared

0.00

None

0.00

BrightSpring Health Services

SOLE

COM

Shares1.19M

TypeSH

Market value$82.66M

1.71%

Sole

1.18M

Shared

0.00

None

1.01K

Hinge Health, Inc.

SOLE

COM

Shares855.48K

TypeSH

Market value$71.00M

1.47%

Sole

852.67K

Shared

0.00

None

2.81K

Rambus, Inc

SOLE

COM

Shares527.02K

TypeSH

Market value$69.96M

1.45%

Sole

511.69K

Shared

0.00

None

15.33K

Macom Technology Solutions

SOLE

COM

Shares179.36K

TypeSH

Market value$68.22M

1.41%

Sole

171.34K

Shared

0.00

None

8.02K

Lumentum Hldgs, Inc.

SOLE

COM

Shares72.19K

TypeSH

Market value$61.94M

1.28%

Sole

66.43K

Shared

0.00

None

5.75K

Lattice Semiconductor Corporat

SOLE

COM

Shares391.82K

TypeSH

Market value$59.93M

1.24%

Sole

386.29K

Shared

0.00

None

5.53K

Nova Ltd.

SOLE

COM

Shares108.67K

TypeSH

Market value$59.00M

1.22%

Sole

108.49K

Shared

0.00

None

185.00

Carpenter Technology Corp.

SOLE

COM

Shares93.27K

TypeSH

Market value$57.53M

1.19%

Sole

93.15K

Shared

0.00

None

121.00

Frontdoor, Inc.

SOLE

COM

Shares719.06K

TypeSH

Market value$55.79M

1.15%

Sole

716.10K

Shared

0.00

None

2.96K

Everus Construction Group

SOLE

COM

Shares328.18K

TypeSH

Market value$54.46M

1.13%

Sole

328.18K

Shared

0.00

None

0.00

Veracyte, Inc.

SOLE

COM

Shares877.73K

TypeSH

Market value$51.55M

1.07%

Sole

872.06K

Shared

0.00

None

5.67K

Powell Industries Inc.

SOLE

COM

Shares179.52K

TypeSH

Market value$51.41M

1.06%

Sole

179.52K

Shared

0.00

None

0.00

Life Time Holdings, Inc.

SOLE

COM

Shares1.19M

TypeSH

Market value$48.58M

1.00%

Sole

1.19M

Shared

0.00

None

1.12K

Rush Street Interactive, Inc.

SOLE

COM

Shares1.63M

TypeSH

Market value$48.41M

1.00%

Sole

1.56M

Shared

0.00

None

65.08K

Mercury Systems, Inc.

SOLE

COM

Shares392.72K

TypeSH

Market value$48.04M

0.99%

Sole

379.68K

Shared

0.00

None

13.04K

Dutch Bros., Inc.

SOLE

COM

Shares656.09K

TypeSH

Market value$47.11M

0.97%

Sole

656.09K

Shared

0.00

None

0.00

Clean Harbors, Inc.

SOLE

COM

Shares153.47K

TypeSH

Market value$45.85M

0.95%

Sole

146.22K

Shared

0.00

None

7.26K

Solaris Energy Infrastructur

SOLE

COM

Shares564.58K

TypeSH

Market value$45.43M

0.94%

Sole

548.70K

Shared

0.00

None

15.88K

Issuer	Class	Shares	Type	Value / Portfolio %	Voting — Sole	None
Credo Technology GroupSOLE	COM	1.01M	SH	$275.60M 5.69%	990.60K	22.83K
Applied Optoelectronics Inc.SOLE	COM	1.79M	SH	$265.37M 5.48%	1.78M	11.94K
DigitalOcean Holdings, Inc.SOLE	COM	930K	SH	$146.04M 3.02%	898.28K	31.72K
Silicon Motion Techn ADRSOLE	COM	316.35K	SH	$105.45M 2.18%	316.35K	0.00
Ultra Clean HoldingsSOLE	COM	647.28K	SH	$92.30M 1.91%	646.38K	900.00
SharkNinja, Inc.SOLE	COM	593.50K	SH	$90.37M 1.87%	578.70K	14.80K
SiTime CorporationSOLE	COM	119.50K	SH	$89.10M 1.84%	119.50K	0.00
BrightSpring Health ServicesSOLE	COM	1.19M	SH	$82.66M 1.71%	1.18M	1.01K
Hinge Health, Inc.SOLE	COM	855.48K	SH	$71.00M 1.47%	852.67K	2.81K
Rambus, IncSOLE	COM	527.02K	SH	$69.96M 1.45%	511.69K	15.33K
Macom Technology SolutionsSOLE	COM	179.36K	SH	$68.22M 1.41%	171.34K	8.02K
Lumentum Hldgs, Inc.SOLE	COM	72.19K	SH	$61.94M 1.28%	66.43K	5.75K
Lattice Semiconductor CorporatSOLE	COM	391.82K	SH	$59.93M 1.24%	386.29K	5.53K
Nova Ltd.SOLE	COM	108.67K	SH	$59.00M 1.22%	108.49K	185.00
Carpenter Technology Corp.SOLE	COM	93.27K	SH	$57.53M 1.19%	93.15K	121.00
Frontdoor, Inc.SOLE	COM	719.06K	SH	$55.79M 1.15%	716.10K	2.96K
Everus Construction GroupSOLE	COM	328.18K	SH	$54.46M 1.13%	328.18K	0.00
Veracyte, Inc.SOLE	COM	877.73K	SH	$51.55M 1.07%	872.06K	5.67K
Powell Industries Inc.SOLE	COM	179.52K	SH	$51.41M 1.06%	179.52K	0.00
Life Time Holdings, Inc.SOLE	COM	1.19M	SH	$48.58M 1.00%	1.19M	1.12K
Rush Street Interactive, Inc.SOLE	COM	1.63M	SH	$48.41M 1.00%	1.56M	65.08K
Mercury Systems, Inc.SOLE	COM	392.72K	SH	$48.04M 0.99%	379.68K	13.04K
Dutch Bros., Inc.SOLE	COM	656.09K	SH	$47.11M 0.97%	656.09K	0.00
Clean Harbors, Inc.SOLE	COM	153.47K	SH	$45.85M 0.95%	146.22K	7.26K
Solaris Energy InfrastructurSOLE	COM	564.58K	SH	$45.43M 0.94%	548.70K	15.88K

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